Answer:
The answer would be A.
Because a decade is 10 years there for the only option that would be correct would be A.
Answer:
"research is not a straight line" can mean that it takes trial and error plus lots of effort to get the research needed/getting research isn't easy
This doesnt make sense.
Sorry, Give more info maybe?
Answer
Macbeth is not at peace because, in order to become a king, he murdered the previous king, Duncan. Not only does this murder make Macbeth consumed with guilt, but it triggers a series of events that make him feel more and more uneasy. Macbeth later murders Banquo, convinced that he also represents a threat to his power, while Duncan's son plots a revenge against Macbeth.
